编译Linux内核，基于x86

export ARCH=x86

make x86_64_defconfig

make menuconfig
报错：
scripts/kconfig/lxdialog/dialog.h:38:20: fatal error: curses.h: 没有那个文件或目录
#include CURSES_LOC
^
compilation terminated.
sudo apt-get install libncurses5-dev

make menuconfig
　　General Setup--->[*]Initial Ram filesystem and RAM disk
　　Device Driver---->[*]Block Devices---><*>RAM block device support
　　　　　　　　　　(65535)Default ram disk size (kbytes)
make

编译后的内核再/arch/x86_64/boot/bzImage